fluke&farnell webinar

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Predictive maintenancewith Fluke devices

Karol BieleckiTechnical Sales Manager CEEkarol.bielecki@fluke.com

Drum dryer maintenance

Drum dryer is driven by four electric motors through gear box.

Predictive maintenance measurements

Fluke 805FCVibration measurment

Fluke 1587FCInsulation measurment

Fluke 376FCLoad measurment

Fluke TiS45Temperature measurment

How does Fluke Connect™ help?

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Define assets

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Vibration measurements

time

Level

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Fluke 805’s Innovative Sensor

Bandpass4kHz – 20kHz

Bandpass10Hz - 1kHz

Bearing EvaluationCF+

Machine Evaluation

ForceSensor

Accelerometer

• When wrong force is applied to vibration pen, you get wrong results

• 805 waits for the right force before starting the measurement

• This unique feature gives reliable results

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Bearing Vibrations

• Bearings are crucial parts in rotating equipment• For maintenance purpose the bearing vibrations

are measured and evaluated to get the condition

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A healthy bearing

time

Level Peak

RMS

RMSPeak

CF = Crest Factor is close to 3

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Bearing’s wear and tear (1)

time

LevelPeak

RMS

RMSPeak

CF = Crest Factor is increasing

Spall or dent

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Bearing wear and tear (2)

time

Level

RMSPeak

CF = Crest Factor is decreasing

Peak

RMS

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CF

Time

No Faults Development Detoriation

Detoriation gets worse

CF

Replace

RMSPeak

CF =

CF =5

Disadvantage of Crest Factor

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CF - Evaluation

CF

Time

No Faults Development Detoriation

Detoriation gets worse

CF

Replace

CF+

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Meaurments gained from Fluke 805FC

Overall vibration measurements

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High overall vibration because of the nature work of drum dryer

Bandpass10Hz - 1kHz

Machine Evaluation

Overall vibration measurements

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High CF+ value cause by waer bearing

Bandpass4kHz – 20kHz

Bearing EvaluationCF+

CF+ measurements

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Temperature measurements

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the electrical equipment should have at least 40% load for a good inspection

Temperature measurements

Temperature measurements

Temperature in insulation life time

•Max temp exceeded by:– +10° C– +20° C– +30° C

•Insulation life reduced by:– 50%– 75%– 88%

Motor Inspection Basics:

• With failing insulation the overall motor temperature increases

• Overheating causes failures and reduces insulation time

• Production losses caused by downtime can be very high

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Temperature measurements

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Occurs when the insulation between motor windings deteriorates (think about dust, sand, water, corrosion etc), causing a short circuit in the windings.

Insulation measurements

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• Look for a resistance value of >1 megaohm per kilovolt.• Best if part of periodic maintenance schedule.• Next power up, check for shaft voltage and bearing current.

Insulation measurment

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Insulation measurment

1. Connect 2. Capture 3.Save 4. View Measurements 5.Share Measurements

7. ViewEquipment Records

8. View Work Orders

6. Collaborate 9. Visualizeon Equipment Health

Technicians can ….

A team can ….10. Share

Equipment Health

With Fluke Connect™…

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